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公开(公告)号：US4047916A
公开(公告)日：1977-09-13
申请号：US725054
申请日：1976-09-21
IPC分类号： C03B23/027 , C03B23/02
CPC分类号： C03B23/027
摘要： This invention relates to a method and apparatus for bending glass sheets in pairs to a so-called double V-bend in which the glass is bent sharply across its width along two lines of sharp bending to form a pair of sharply bent longitudinal extremity portions. The gist of the invention is the application to a sectionalized mold of weighted elongated electroconductive ribbons which are unattached to any mold structure and each of which is readily applied to and removed from positions above the upper surface of the glass sheets mounted on the mold for bending in sliding superimposed relation to a pair of electrodes along lines aligned with the lines of sharp bending. The ribbons are maintained in spaced relation to the glass throughout the bending operation so as to avoid marking the glass. The mold sections terminate at locations along transverse lines aligned with and slightly below the ribbons.
摘要翻译： 本发明涉及一种用于将玻璃板成对地弯曲成所谓的双V形弯曲的方法和装置，其中玻璃沿着两条尖锐弯曲线在其宽度上急剧弯曲，以形成一对急弯弯曲的纵向末端部分。 本发明的要点是适用于未连接到任何模具结构的加权细长导电带的分段模具，并且每个都容易地施加到安装在模具上用于弯曲的玻璃板上表面上方的位置 沿着与尖锐弯曲线对齐的线与一对电极滑动叠加。 在整个弯曲操作期间，色带与玻璃保持间隔开，以避免标记玻璃。 模具部分终止于沿着与丝带对准并稍微低于丝带的横向线的位置。
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公开(公告)号：US4066429A
公开(公告)日：1978-01-03
申请号：US799045
申请日：1977-05-20
IPC分类号： C03B23/027 , C03B23/02
CPC分类号： C03B23/027
摘要： Glass sheets are bent along a line which is sharply creased at one end and gently curved at the opposite end. Localized heating along the line is provided by an electrically heated ribbon mounted above the glass so as to maintain a constant spacing between the glass and the ribbon at one end of the line, while the spacing at the other end of the line gradually increases as bending progresses.
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3.发明授权
公开(公告)号：US4124367A
公开(公告)日：1978-11-07
申请号：US852115
申请日：1977-11-16
IPC分类号： C03B23/025 , C03B25/02 , C03B25/08 , C03C27/12 , C03B23/02
CPC分类号： C03B23/0252 , B32B17/10036 , B32B17/10293 , B32B17/10761 , C03B23/025 , C03B25/025 , C03B25/08
摘要： A method of fabricating bent laminated safety glass windshields having at least one hole through the entire thickness thereof adjacent to but spaced entirely from the marginal edge thereof is disclosed.
摘要翻译： 公开了一种制造弯曲的层压安全玻璃挡风玻璃的方法，所述挡风玻璃在其整个厚度上至少有一个孔邻近但与其边缘完全隔开。
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公开(公告)号：US4043784A
公开(公告)日：1977-08-23
申请号：US701465
申请日：1976-07-01
IPC分类号： C03B23/025 , C03B23/02
CPC分类号： C03B23/0252
摘要： Shaping glass sheets of soda-lime-silica compositions by gravity sagging into complicated shapes having a portion of convex curvature and another portion of concave curvature requires a continuous shaping surface onto which a supported glass sheet is heated and sags. The present invention provides a method of bending soda-lime-silica glass sheets onto curved molds of a complicated curvature comprising a previously shaped sheet of a glassy composition having a heat capacity approximating that of the soda-lime-silica composition and a lower coefficient of thermal expansion and a higher deformation temperature than those of the sode-lime-silica composition of the glass sheet to be bent. The layer of glassy composition which provides the mold shaping surface is in turn supported on a metal frame of outline configuration conforming in elevation and outline to the shape of the layer of the special glassy composition, and preferably has a minimum thickness at least equal to the glass sheet to be shaped to insure that when the composite mold comprising the shaped outline metal frame and the superimposed shaped layer supporting a glass sheet to be shaped is heated to the deformation temperature of the glass sheet, the layer retains its shape sufficiently to be used as part of the composite mold in subsequent bending operations.A layer of knit fiber glass composition is held in stretched relation over the upper shaping surface of the layer of special glassy composition to reduce the possibility of surface damage to the shaped glass sheet. Glass sheets shaped on such composite molds by gravity sagging conform closely to the desired complicated shape and also have a desired stress pattern in the marginal edge portion.
摘要翻译： 通过重力下垂形成具有凸曲率部分和凹曲面的另一部分的复杂形状来形成钠钙二氧化硅组合物的玻璃板，需要连续成型表面，在该连续成形表面上加载有支撑的玻璃板并且下垂。 本发明提供了一种将钠钙石英玻璃片弯曲成复杂曲率的弯曲模具的方法，其包括预先形成的玻璃状组合物片，其热容量接近钠钙二氧化硅组合物的热容量， 热膨胀和比要弯曲的玻璃板的锡 - 石灰 - 二氧化硅组合物更高的变形温度。 提供模具成形表面的玻璃状组合物层又支撑在与高度和轮廓相符的轮廓形状的金属框架上，与特殊玻璃组合物的层的形状相对，并且优选地具有至少等于 玻璃板被成形以确保当将包括成形轮廓金属框架的复合模具和支撑待成形玻璃板的叠置成形层加热到玻璃板的变形温度时，该层保持其形状充分地使用 作为复合模具在后续弯曲操作中的一部分。
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